Apologies for cross-posting.

On behalf of Luisa Stellato, Harald Hofmann and myself I'd like to bring 
to your attention the session at EGU2017:

*HS2.1.6 Measuring and modelling surface water – groundwater interactions **
Abstract deadline is *January 11* and the description of the session is 



Understanding hydrological processes that occur when surface waters and 
groundwater merge into a unique hydrological system has significant 
importance for water management and resource allocation. The dynamics of 
groundwater/surface water exchanges are also important for the 
functioning of aquatic ecosystems, pollutant and nutrient transport as 
well as the quality and quantity of water supply to domestic, 
agricultural and recreational purposes.

The surface water and groundwater components of the hydrological system 
are still poorly understood, in particular in terms of the importance of 
each end-member and the temporal and spatial variability of exchange in 
between reservoirs. Moreover, an effort to upscale the findings from 
reach-scale studies to the catchment-scale as well as to incorporate the 
results in modelling efforts are also needed for an effective management 
of connected water resources.
A large variety of tools have been developed to assess the magnitude as 
well as the temporal and spatial variability of the exchange fluxes, 
including geophysical, hydrological and geochemical approaches, often 
combined together.
While these techniques need refining, the use of the resulting data in 
management relevant hydrological modelling is scarce. The link between 
field base observations and model approaches is weak.

This conference session encourages contributions from hydrogeologists, 
stream ecologists, microbiologists, geochemists, geomorphologists, 
coastal oceanographers and landscape ecologists in order to discuss new 
developments, field and analytical methods and techniques to reduce 
uncertainties in prediction of groundwater/surface water interactions 
and to better understand spatial and temporal variability of the 
exchange. In particular, approaches and methods allowing the detection 
and quantification of groundwater inputs to surface water, the tracing 
of water flow paths within the riparian and stream bed sediments and the 
understanding of hyporheic zone exchange mechanisms are welcome.

Research should be related to further development of hydrograph 
analysis, application of chemical and isotopic tracer techniques, 
geophysical techniques, modelling, as well as improved experimental 
designs in order to characterize spatial and temporal dynamics of 
hydrological and biogeochemical processes of connected water resources 
at the catchment and at the reach and sub-reach scales in terrestrial 
(rivers, lakes and wetlands) and coastal environments (e.g. SGD).


Prof. Ian Cartwright

Environmental Isotopes, Environmental Geochemistry, Hydrogeology

School of Earth, Atmosphere & Environment
9 Rainforest Walk
Monash University
Clayton Vic. 3800, Australia
t: 03 9905-4887 / 4879

Past President, International Association of Geochemistry

...water, our greatest resource